Specification Brand : Huanyu BulletPoint1 : 【Difference】The ARK-800 jaw bracket is manual and the ARK-810 jaw is electric. BulletPoint2 : 【Auto-tracing feature】operator can adjust the focus and lignment in up and down directions. BulletPoint3 : 【Auto video taping feature】operator can take measurements automatically once equipment obtains satisfactory focus and alignment. BulletPoint4 : 【Servo Chin-Rest】operator can adjust height of Chin-rest easily. BulletPoint5 : 【Display & Printer】tilt-adjustable. Printer has a paper auto-cut feature. Color : Ark-800 ItemName : Huanyu Auto Refractometer Refractor Optometry Equipment Automatic Computerized Optometer with Color Screen ARK-800 ARK-810 (ARK-800) ItemTypeKeyword : science-lab-refractometers Manufacturer : Huanyu Material : Metal ProductDescription : Specifications: Printer: Thermal Printer Power saving settings: 5-10 minutes Display: 5.7 inch TFT display Power supply: AC100-240V, 50/60HZ 90W Specification/weight: 248(W)*476(D)X475Hmm/7kg Frontal support: Max55mm
Technical data Diopter: Fixed-point distance: 0,12,13.75 mm Spherical Mirror: ~-20.00-+20.00D (VD=12mm, 0.12 or 0.25D) Cylindrical Lens: 00-~+1/-10.00D (0.5 or 0.25D) Axis: 1-180 degrees (step length 1 degree) Cylindrical symbols: ~-, +,,+/- Pupil distance: 30-85 mm Minimum pupil diameter: 2.0mm Measuring time: 0.5sec Corneal curvature: Radius of curvature: 5.0-10 mm Corneal diopter: 33.00-67.00D Corneal astigmatism: 0.00-15.00D (0.12/0.25D) Corneal diameter: 2.0-12.0 mm